Initial commit

checker/testhelpers_test.go

@@ -0,0 +1,37 @@
+// SPDX-License-Identifier: MIT
+
+package checker
+
+import (
+	"context"
+	"encoding/json"
+	"errors"
+
+	sdk "git.happydns.org/checker-sdk-go/checker"
+)
+
+// stubObs is a minimal ObservationGetter for rule tests. It JSON round-trips
+// the stored value into the destination so it exercises the same code path
+// rules see in production.
+type stubObs struct {
+	value any
+	err   error
+}
+
+func (s stubObs) Get(_ context.Context, _ sdk.ObservationKey, dest any) error {
+	if s.err != nil {
+		return s.err
+	}
+	if s.value == nil {
+		return errors.New("no value")
+	}
+	raw, err := json.Marshal(s.value)
+	if err != nil {
+		return err
+	}
+	return json.Unmarshal(raw, dest)
+}
+
+func (s stubObs) GetRelated(_ context.Context, _ sdk.ObservationKey) ([]sdk.RelatedObservation, error) {
+	return nil, nil
+}